The first self-owned DC converter transformer was born in Shenyang

TBEA Shenyang Transformer Co., Ltd. made history as the first national standard project, successfully manufacturing the first ±500 kV DC converter transformer for the second phase of the Guizhou-to-Guangdong HVDC transmission project. This product passed all required tests on the first attempt, marking a major breakthrough for Chinese engineering. The achievement demonstrates that TBEA has mastered the core technologies of the world’s most advanced transformer systems and is fully capable of producing high-quality ±500 kV DC products independently. In December 2004, during a signing ceremony attended by the Chinese and German premiers, TBEA Shenyang, Siemens, and China Southern Power Grid signed a contract for 34 sets of ±500 kV DC equipment for the Guiguang Second Converter Station. This was the first time the Chinese side led a major power transmission project in a joint venture with foreign partners. To ensure the successful completion of this key national project, TBEA established a dedicated DC department, carefully managing the design and manufacturing process. They completed the external verification of their independent design drawings quickly, allowing the product to move smoothly into production. Starting from July 14, the first product underwent rigorous testing under the supervision of the National Transformer Quality Testing Center, the two users, and Siemens experts. Over the past 10 days, tests including DC withstand voltage, polarity reversal, AC external withstand voltage, and induced voltage were conducted, and the results met world-class standards. Currently, TBEA is accelerating production of 1000 kV UHV transformers for the State Grid's test base and has won a bid for 750 kV main transformers in the northwest region. Additionally, the company has made significant progress in developing ±800 kV DC products, and now possesses full capability to independently produce converter transformers and smoothing reactors for DC transmission projects up to ±800 kV. This marks a strong step forward in China's efforts to lead in high-voltage power transmission technology.

Conveying Equipment Series

The Conveying Equipment Series is a collection of machines designed to transport materials from one place to another. These machines are used in a variety of industries, including manufacturing, mining, agriculture, and construction. They are essential for moving materials efficiently and quickly, reducing labor costs, and improving productivity.

One of the most common types of conveying equipment is the conveyor belt. This machine consists of a belt that moves continuously, carrying materials from one end to the other. Conveyor belts are used to transport a wide range of materials, including grains, coal, rocks, and chemicals. They are available in different sizes and configurations, depending on the specific needs of the industry.

Another type of conveying equipment is the bucket elevator. This machine consists of a series of buckets attached to a chain or belt. The buckets are used to scoop up materials from one level and transport them to another level. Bucket elevators are commonly used in the agricultural industry to transport grain and other crops.

Screw conveyors are another type of conveying equipment. These machines consist of a rotating screw that moves materials along a trough or tube. Screw conveyors are used to transport bulk materials such as grain, cement, and chemicals. They are commonly used in the food processing industry for transporting ingredients and finished products.

Pneumatic conveying systems are also commonly used in many industries. These systems use air pressure to move materials through pipes or tubes. Pneumatic conveying systems are often used in the chemical industry to transport powders and other materials that are difficult to handle with other types of conveying equipment.

In addition to these types of conveying equipment, there are many other machines available for transporting materials. Some of these include belt conveyors, roller conveyors, vibrating conveyors, and chain conveyors. Each of these machines has its own advantages and disadvantages, depending on the specific needs of the industry.

Overall, the Conveying Equipment Series is an essential collection of machines for many industries. These machines are designed to move materials efficiently and quickly, reducing labor costs and improving productivity. With so many different types of conveying equipment available, it is important for industries to choose the right machine for their specific needs.

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